JPS6225070Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a rice transplanter, and more particularly, to a rice transplanter having a seedling transplanting device having a seedling stand mounted on the machine body.

Generally, this type of rice transplanter has a seedling transplanting device that includes a horizontal feeding device for the seedling platform that reciprocates the seedling platform horizontally with respect to the machine body, and a vertical feeding device that moves the seedlings on the seedling platform downward intermittently. A transmission device is provided. However, in addition to the transverse transport shaft, this traversing device requires a reciprocating movement guide shaft for the seedling platform, which is long enough to cover the entire width of the reciprocating movement of the seedling pedestal. Since both outer ends of the guide shaft are connected and supported at both ends of the guide shaft,
The overall width of the machine, that is, the space required for the seedling table during reciprocating movement of the seedling table increases, and the vertical feeding device is driven by receiving input from both outer ends of the horizontal feeding shaft. Drive cams are provided at both outer ends of the feed shaft, and cam driven pieces are provided at both ends of the vertical feed shaft of the vertical feed device. Since they were provided at both outer ends of the feed shaft, there was a problem in that the width of the machine as a whole became even larger.

Therefore, the present invention was devised to solve the above-mentioned problems.The purpose of this invention is to simplify the structure of the transversal device for the seedling platform that reciprocates the seedling platform, thereby reducing costs. To provide a rice transplanter which requires a small space for a seedling platform during reciprocation of the platform and can reduce the width of the machine as a whole.

Embodiments of the present invention will be described below based on the drawings.

In the figure, the aircraft body generally indicated by number 1 includes a machine base 3 on which a prime mover 2 is mounted, transmission cases 4, 4 extending from the machine base 3 to both sides, and each of the transmission cases 4, 4. A chain case 6 is provided from the machine base 3 to the rear of the machine so as to be located between the support frames 5, 5 in the machine body 1.
This chain case 6
A pair of drive wheels 7, 7 are mounted on shafts at the free end of the chain case 6 so as to be close to each other on both sides, and these drive wheels 7, 7 are connected to the transmission inside the chain case 6. Two floats 8, 8 are interlocked and connected to the prime mover 2 via a mechanism (not shown), and suspended at respective outer positions of the two driving wheels 7, 7 at the lower part of the machine body 1. A seedling planting device 9 is provided in the body 1 so as to extend between the free ends of the support frames 5, 5. This seedling planting device includes storage cases 10, 10 provided around each free end portion of the support frames 5, 5;
This seedling planting device consists of a planting claw 12 supported through planting shafts 11, 11, and a seedling platform 13 supported so as to be reciprocatable laterally between the storage cases 10, 10. The seedling stand 13 at 9 is configured to be reciprocated by a cross-transfer device 14, that is, transmission cases 15, 15 are provided extending rearward and upward from both the storage cases 10, 10, and the two transmission cases 15, A cross-feed shaft 17 having a reciprocating spiral groove 16 is mounted between the cross-feed shafts 15, a slider 18 is inserted into the cross-feed shaft 17, and a pin 1 protrudes from the slider 18.
9 into the reciprocating spiral groove 16, the slider 18 is configured to reciprocate by rotation of the transverse feed shaft 17, and the connecting arm 2 is connected from the slider 18 to the slider 18.
0, 20 are provided protrudingly, and these connecting arms 20, 2
0 into the connection housing 21,
The connection housing 21 is connected to the seedling stand 13.
The slider 1 is inserted and fixed into the rib 23 at the center of the slider 1
8 is connected to a seedling stand 13, so that the seedling stand 13 moves back and forth as the slider 18 reciprocates. Further, the seedling planting device 9 is provided with a vertical seedling feeding device 22, and the seedling mounting table 13 is provided with a seedling vertical feeding device 22.
It is configured to vertically feed the seedlings placed thereon, that is, cams 24, 24 are inserted and fixed on both sides of the horizontal feed shaft 17, and the connecting arms 20, 2
An intermediate shaft 25 extending in the same direction as the cross-feeding shaft 17 is mounted on the cam 2 at both ends of the intermediate shaft 25.
While the cam follower pieces 26 and 26 that abut the 4 and 24 are inserted and fixed, on the lower back side of the seedling stand 13,
A vertical feed shaft 27 extending in the reciprocating direction of the seedling table 13 is mounted on a shaft, and a plurality of ratchet wheels 28 are mounted on this vertical shaft 27.
are inserted and fixed at predetermined intervals, and a part of the outer periphery of the ratchet wheel 28 is made to protrude to the surface side of the seedling platform 13, and the central portion of the vertical feed shaft 27, specifically, the seedling platform 1.
A one-way rotation transmission clutch 29 is fitted onto the shaft corresponding to the connecting rib 23 at the center of the clutch 3, and an arm 30 protrudes from the transmission clutch 29 and an arm 31 protrudes from the intermediate shaft 25. A spring 33 is provided in the transmission clutch 29 so as to connect the transmission clutches 29 to each other via a connection link 32 disposed in the connection housing 21, and to normally bias the transmission clutch 29 in the direction of rotational transmission. As the seedling table 13 reciprocates, the ratchet wheels 28 are intermittently rotated together with the vertical feed shaft 27 to vertically feed the seedlings.

In addition, 34, 34 in the figure is a guide rod installed between the operating handles 35, 35, and this guide rod 34, 34
There are receivers 36, 3 attached to the back of the seedling stand 13.
6 is placed on the seedling stand 13, and when the seedling stand 13 slides left and right, the seedling stand 13 moves between the receivers 36, 36 and the guide rod 3.
It is guided and supported by 4 and 34.

Thus, in the rice transplanter of the present invention, when the prime mover 2 is operated, the pair of drive wheels 7, 7 are driven via the transmission mechanism interlocked with the prime mover 2 in the chain case 6, and the machine body 1 run is performed.

As the machine body 1 travels, the field surface is leveled by two floats 8, 8 suspended at the outer positions of the drive wheels 7, 7 at the bottom of the machine body 1, and the seedling planting device The seedlings 9 are driven by the power of the prime mover 2 via a transmission mechanism, and the planting claws 12 grab the seedlings on the seedling stand 13 and plant them on a leveled field.

That is, the planting claws 12 of the seedling planting device 9 are provided within the transmission cases 4, 4, the support frames 5, 5, and
The power from the prime mover 2 is used to move up and down with the power from the prime mover 2 via a drive shaft 37, which is interlocked and connected to the prime mover 2, a pair of bevel gears 38, 39, which are housed in storage cases 10, 10, and the planting shafts 11, 11. It is driven, picks up the seedlings on the seedling platform 13, and plants the seedlings in the field.

Further, the seedling platform 13 of the seedling planting device 9 is interlocked and connected via a connecting member to a cross-feeding shaft 17 of a cross-feeding device 14 that can be reciprocated in the horizontal direction, and is connected to the cross-feeding shaft 17 via a drive mechanism. It is interlocked and connected to the prime mover 2,
The power of the prime mover 2 is transmitted to the transverse feed shaft 1 via the drive mechanism.
7 to drive the cross-feeding shaft 17, and by driving the cross-feeding shaft 17, the seedling platform 13 is reciprocated via the connecting member.

That is, the clutch 40 and sprocket 41 fitted into the shaft portion of the planting shaft 11, and the transmission case 1
A sprocket 42 attached to both ends of a transverse feed shaft 17 mounted between 5 and 15 is connected via a chain 43, and the above-mentioned planting claws 12 are simultaneously driven via the planting shaft 11. The power from the prime mover 2 is transmitted to the transverse feed shaft 17, and the transverse feed shaft 17 is rotationally driven. Along with this rotational drive of the transverse feed shaft 17,
A slider 18 reciprocates via a pin 19 inserted into a reciprocating spiral groove 16 provided on the traversing shaft 17 of the traversing device 14, and the reciprocating movement of the slider 18 causes a drop from the slider 18. protruding connecting arms 20, 20;
and a seedling stand 1 connected via a connecting housing 21 that houses the connecting arms 20, 20.
3 can be moved back and forth. As the seedling table 13 reciprocates, seedlings can be continuously planted using the aforementioned planting claws 12.

Furthermore, in conjunction with the rotational drive of the horizontal feed shaft 17, the seedling vertical feed device 22 is intermittently driven to vertically feed the seedlings placed on the seedling platform 13, and the planting claws 12 The planting of seedlings is carried out continuously and automatically.

That is, when the slider 18 reaches the moving end with the drive rotation of the cross-feed shaft 17, the cams 24, 24, which rotate together with the cross-feed shaft 17, engage the cam follower pieces 26, 26.
are caused to collide and swing, and this cam follower piece 26,
26 rotates the transmission clutch 29 from the intermediate shaft 25 via the arm 31, the connecting link 32, and the arm 30. At this time, the transmission clutch 29 simply rotates idly on the vertical feed shaft 27, and the vertical feed shaft 27
does not rotate, and the cam driven pieces 26, 26
4 and 24, when the transmission clutch 29 is rotated in the opposite direction by the restoring force of the spring 33, the transmission clutch 29 and the longitudinal shaft 27 are integrated, and the longitudinal shaft 27 is rotated. 27 rotates together with the transmission clutch 29, and as a result, the seedlings are vertically fed via the ratchet wheel 28 which is fitted and fixed onto the vertical feed shaft 27.

As explained above, the rice transplanter according to the present invention has a transverse shaft extending in the lateral direction of the machine body near the seedling stand of the machine body, and reciprocates with the rotation of the transverse shaft. A slider is inserted and the slider is connected to the seedling stand via a connecting housing, and the seedling stand is configured to reciprocate, so it is different from the conventional seedling stand. Unlike the cross-feeding device, there is no need for a reciprocating motion guide shaft for the seedling platform that is long enough to cover the entire width of the reciprocating motion of the seedling platform, in addition to the horizontal conveying shaft, and the structure can be simplified. The transverse shaft only needs to have a length that matches the reciprocating stroke of the seedling platform, and there is no need to provide a connecting support member to the guide shaft at the outermost end of the seedling platform. The space required for the seedling platform during reciprocating movement of the platform can be reduced, and as a result, the overall width of the machine can be shortened.

In addition, a vertical feed shaft mounted on the back side of the seedling stand,
It is interlocked and connected to the horizontal feed shaft via an interlocking mechanism arranged in the connection housing, and compared to the conventional case where drive mechanisms for the vertical feed shaft are provided at both outer ends of the seedling stand, The space required for the seedling table during reciprocating movement of the seedling table can be further reduced, and the overall width of the machine can be further shortened.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a side view thereof, FIG. 2 is a plan view of the same, and FIGS. 3 and 4 are enlarged explanatory views of the same essential parts. 1... Airframe, 2... Prime mover, 7... Driving wheels,
9...Seedling planting device, 13...Seedling mounting stand, 17...Horizontal feed shaft, 18...Slider, 21...Connection housing, 27...Vertical feed shaft.

Claims (1)

[Scope of utility model registration request] In a rice transplanter comprising a machine body equipped with a prime mover with driving wheels mounted on a shaft, and a seedling transplanting device having a seedling platform mounted on the machine body, a transverse feed shaft extending in the lateral direction of the machine body is provided near the seedling platform of the machine body. The transverse shaft is interlocked and connected to the prime mover by a shaft rack, and the transverse shaft is provided with:
A slider that reciprocates as the transverse shaft rotates is inserted, and this slider is connected to the seedling stand via a connecting housing, while the back side of the seedling stand is A rice transplanter characterized in that a vertical feed shaft for vertically feeding seedlings is mounted on a shaft, and this vertical feed shaft is interlocked and connected to the horizontal feed shaft via an interlocking mechanism provided in the connection housing. .